Description
Returns the variance of each column of x
where x is a real or double-precision matrix.
The return value is a row vector
with the same number of columns as x.
The return value has the same type as x.
Example
If you enter
x = [{4., -2., 1.}, {9., 5., 7.}]
colvar(x)
O-Matrix will respond
[ 12.5 , 24.5 , 18 ]
